Fastening-inserting machine



Jan. 20, 1931. w, ROBERTS 1,789,323

FASTENING INSERTING MACHINE Filed Feb. 6. 1929 2 Sheets-Sheet 1 Jan. 20, 1931.

w. T. a. ROBERTS FASTENING INSERTING MACHINE 2 Sheets-Sheet 2 Filed Feb. 6, 1929 94 //v VENTUA'I' Patented Jan. 20, 1931 wrLnmivl-rnoims BUCKINGHAM with an awl which v work-penetrating RAT-ION on NEW JERSEY, I

e I noBnR'rs; or- Lnron's'rna, ENGLAND, Assrenon 17o nmrnnsnon MACHINERY oonromirron,or'rArEnsoN; new JERSEY, A'ooaro- I t FASTENINGV-IN'SERTINVG:MACHINE. 1

v Application filed. February 6,- 1929, Serial No Thisinven'ti'on' relates to fastening inserting machines'and-isflillustrated herein as embodied in a loose nailing machine. 7 7

When inserting fastenings, for example hailsypegs or slugs,

forms fastening receivingholes in the work pieces'presented to the machine, it happens occasionally that the machine fails to insert a fastening in an awl hole. Under such circumstances 1t is necessary'sub'sequently to'drive a fasteninginto the empty hole. It is an; object of the present invention to pro-videa tasteningin r v V serting machine so:organized that a fasten-- ing can bedriven'precisely into such an empty hole, or exactly at any other desired point-on the surfaceof a workpiece. a, a lViththis-object in "view and in accordance with a feature'gof the invention, the illustrated machine which has awl operating means arranged to cause the ,awlto come to rest out of engagement with the work piece when the machine is stopped and is of the type disclosed in Letters Patent of the United-States Non 490,624, granted January 24, 1893, on an application of 'LouisGoddu, is provided withmeans by which the awl'can be moved into work penetrating position whilethemachine is at rest so that the awl may-act as a work lo-cator. In the illustrated machinethe awl operating means includestwo members normallyheld positively together against the actionofa spring which, when the two members arereleased for relati-vemovement, operates to lower the awl to position. Ainanually-operatedcontroller is provided, displacement of which may, if'desired, not only permit the spring-to move the awlto work penetrating position by reason of the disconnecting of two normally connected parts of the awl operating mechanism, but may alsobe eflec= five-positively to move the awl to work penerating position. Then the machine is started, the awl is automatically restored to normal-operation. 7 1

lvhile, as'pointed out above, the invention is illustrated as embodied in a nail inserting machine of the type disclosed in Letters iPaitent-or" the United States No. 490,624it by a machine provided 337,939, and in Great 'Britain March J1; 1928.

should be. understood that example of oneofthe types of machine in which the inventioirmay beembodied. Ob-

viou'sly it is capable of embodiment in other types of nail inserting machine's'ias wellas- 1n machines for 'insertingfastenings of other kinds. I i Y With the above and "other objects in view this is sta a the invention will now be described with;

reference to the accompanying drawings and pointed out in the claims. I

In the drawings, e V i F igQ lI is a front elevation of the head ofa r invention";

Fig; 2is aside by handithe awl ofthe machine ofFig'. 1;

Y'Figm 3 is a frontlview of the mechanism of :1

fastening inserting machine embodying the i .1 view, partlynsection, of mechanism 7 for. ltempo-ra'rlly disconnecting 1 a sideview of a similar *mecha'n may bel'had for fuller disclosure of the machine is necessary in the present, specification. "Thus the machine is provided vWith a stationary head 10in which is journaled a main cam-shaft 12 carrying at its forward end I aliftingcam '14 arranged to cooperate with a lifting block 16 fast on the driver bar 18 of the machine, The driver barv 18 as well as the aw'lbar'QO of the machine are mounted for approximately vertical reciprocation in suitableways formed in a-swinging'head 22 mounted upon the stationary'head 10 for swinging movement about the axis of the a nail pot or hopper 24 from which nails 28 are fed to a raceway 26 arranged to control shaft 12. The machine is also provided with .Altiitsupper end the driver bar is connected 7 by a link etto a lever '36urged downwardly by a stiff compression spring 38 one end of which engages the lever 36 and the other end of which is secured to a bracket 40 carried by the stationary head 10. As is usual in mabar 18 and driver 32 against thelco npression of the spring 38- When the raisedportion;

. of the cam 14 passes out from under the lifting block 16, the spring 38 forces the driver bar 18 and the driver 32 downwardlyiat which time the driver passage of the throat member is in alinement with a hole which has been previously formed in the work piece by an awl 42 carried at the lowerend of the awl bar 20and a'nail, which has beentaken from the raceway 26 by the separator 28, is in the driver passage in front of the driver. The awl 42is given a four-motion feed, its work feeding and return motion being produced by the motion of the swinging head 22. The vertical movement of the awl bar 20 is transmitted to it froma cam on the shaft '12'by mechanism consisting of a cam lever 44, a gear segment 46 (shown inFigs. 1' and 4, but omitted from Figs. 2 and 3) meshing with a. rack formed on theawl bar 20, and

connections between the lever 44 and the'gear segment 46 which will now be described. I In the mechanism shown particularly in Figs. 2,3 and-4 the lever 44 is provided'with sleeve 47 fiXed to the lever andsurroundthe shaft 48. Between the two sleeves 48 and ing a shaft 48 carried in suitable bearings in the stationary head 10. i A second sleeve "50 is fast upon the shaft 48, adjacent ends of the two sleeves abutting against each other as best shown in Figs. 2 and 4. .Both' sleeves are restrained against movement lengthwise of 50 there is a connection comprising a "clutch belt or plunger 52' housed infthe sleeve 50 parallel to the shaft 48 and arranged so that one of its ends can enter a socket member 54 fixed in the sleeve48, to which p'osition it is urged by a spring 53. The sleeve 50 has a pin 56 projecting therefrom parallel to the shaft 48 and into an arcuate recess 58 formed in the sleeve 47 In this recess is housed a coil spring 60 one end of which abuts against the pin 56 and the other against one end of the arcuate recess. \Vheu the end of the bolt 52 is withdrawn from its socket, as hereinafter described, the spring 60 actsto rotate the shaft 48, in a counter-clockwise direction as viewed in Figs. 1 and 3, relatively to the sleeve 47, and thus to lower the awl bar and the awl to work penetrating position.

V The bolt 52 carries at its outer end a cam member or wedge 62 projecting outwardly from the sleeve '50. Pivoted' to the stationary head 10, adjacent to the shaft 48, is a controller which in the construction of Figs. 2, 3 and 4 takes theform of a hand lever 64. The

' against aface'ZO, formed on the lever 64 is provided with a surface 65 arranged to contact, when the lever is pulled to the right as shown in Fig. 3, with a cam surface 63 formed on the wedge plece 62 and bv ressure a ainst the wed e iece causes P o a n the bolt 52 to be movedtothe left as viewed in F 2 'and 'thus to be withdrawn from the socket 54. After thebolt 52 has been fully withdrawn the hand lever 64'maybe moved stillfurther, then pressing against a portion 66 (Fig. 4) OftheiWedgepiece 62 which is parallel to and below the shaft 48. Such further novenientof the hand lever 64 aids the spring 60 in causing the shaft 48, the sleeve 5O andthe gear segment '46 to rock, and in fact provides positive means to lower the awl 4'2 to'its'work penetrating position.

As shown in Fig.2 the end of the bolt 52 is slightly'tapered and thesocket in which it fits is of a similar form. Such an arrangement facilitates the entrance of the end of the bolt into the socket and is usually sufiiciently positive to drive the awl. However, asflan additional safeguard the sleeve 47 is pro.- vided with wing 68 (Fig. 3) which abuts during the normaloperation of the machine a sleeve 50 and is separated therefrom only by manual depression of the awl.

In the construct on shownin Fig. 5 the awl may be lowered when the machine is'at rest by therrocking of a: bell-crank lever fulcrumed at" 82 to the stationary head v 10 and bearinga-t one end. against a lug 84 projecting from a locking bolt 86, which in this construction is housed in a sleeve 88 fixed to the lever 44' and is spring pressed into a socket 90 carried. by asleeve 92 fast upon the shaft 48. The lever 80 may ber-ocked by a treadle to which it is connected through a treadle rod 94 so thatthe depression of the treadle will force the bolt 86 out of the socket 90 and will cause the power stored in the spring 60 to lower the awl. This treadle may be the treadle by which the horn 960f the machine is lowered Thus the lowering of the horn of a fastening inserting machine equipped as illustrated in Fig. 5 will be effective to lower the awl of the machineand the loweredawl may conveniently be used as locating means by which the exact position of the insertion of the first fastener in'thework piece next presented to the machine may be determined.

Referring now particularly to amachine equipped as shown in Figs. 1 to 4, if it is de- 1 operator to move the hand lever 64 to the right as viewed in Figs. 1 and 3. Thehand lever. 64 thus engagesthe cam surface 63 formed on the wedge piece 62 of the bolt 52, carrying the bolt 52 to the left as viewed in Fig. 2 and withdrawing its end from thein combination;

seket54 against --the compression of the or {spring 53. e The spring 6i), aided ifid sired by 0 a s w 1,

. theawl bar and the awl 42.

. 3 gear; segment 46 in a counter-clockwise direc- Work piece Where itfis desired to insert; a-

nail or the first nail of aseries. Uponstart-. l ingthemachinethe lever' iel and thesleeve 48 will be rocked,rcompre ssing the spring and snapped. into the socket 7 Having desc fbed 'my invention, what I claim as newand desire tosecure'by Letters Patent oftheUn ted States is:

fastening inserting machine havin iftheawlto cause the a'wl to penertat e a work j..piecepresentedto the machine to form fash U v en1ng recenmg m 7 holes therein, said means hej'ing arrangedto the machine is stopped, and means constructed. and arranged tol move the vaWl into work ifee'd the work: est to cafuse .the awlJtoact as a work locator penetra'ting posit-ion 'vvhile jtheg machine is at 4o ,bva clutch lde vi ce constructedjand arrange Ito "hennclutched :to permit the a wlwto .be

lijnoved' .Whileits actuating means is'at rest qafnd t'o be reclutched automatically upon the starting of th'einachinet-herehyto restore the t'o'normal ope-ration! r f A fasteninginsertinginachine having in comb natlon an awhjmeanslfor caus ng the f a- 'vlfto, penetrate a. WO1'(.P18C presented to the machine and to be withdravvn therefrom,

soflarranged to causethe awl'to vcometorest out {of engagement \vlthlthe workpiece when the v machine is sito pethand 'nieans operable-When 'f the machine is atrest to cause th v 'to its Work enetratin pOSItIOIL in combinatioman aWLine'a-ns' for causing the awl to penetratea Work piecepresented-to the machinei and to'he Withdrawn therefrom arrangedto cause the and to come torest out of coengagement with thefiv'ork piece wh'eirthef (machine is stopped, and manually controlled "chine'is at rest} toQjcause' the'awl to. moi-etc its workpenetratingposit-i0. r l gr-fiasteninginsertingmachine, having.-

' lliz aeza" s ll and 3, thus lowering The operator then positions the Work piece in-such manner thatthe awl 42 is located in the empty hole or 50 at any otherpoint, on the surface of the. I anawloperahle I v w holes 111 a work Pl-6C6 P'IQSQBhQChthBIGtQiallCl 7 arranged 'to; come to rest with 2616' avvl :vithoperab-le controller arranged, when socket fi l into alinement fWith.

which is accordingly y-the springhS; and

;.the machine operatesin itsnorinalmanner.

1 through one" orimore cycles until brought to v .restby'the releasing of its clutchtreadle- Ywork penetrating .PQSitiQlhsitDCl mean 7 7D an awl, means-for Operating position, a hand tlever I cause thea-wltocome to rest; a 7 5. out ofengage nentwvith thesvork piece when 4-. Affastenin'g inserting machine having,

, 'tratiiig, position, and mea ns arrangec lgto r an aivl nperable-to, make. fastening re ivi'ig holes in a Work" plece presented thereto and arranged to-come totres't wlthytil'' ml with drawn from thefwork piece-,and mmanually operable controller'arranged,

rest, to causemoyement of theawl to itsf-WOrk penetrating:posit-ion, I 6 5A fastening inserting nlachine having to make fastening: receiving di awirjfroni the vork, piece,-a Ema wally" v:di placed tron; its nori-nal conditionWi-th ;tl1 achine at rest, to cause movement --of the -alxvl structed and arranged to up est'ore the} ax'vl vto normal operation on restarting the machine .THA fasten ng! nsert1ng-in achn1e aving {an aw l arranged to 1 penetrate, a Work-piece 7 presented to the machine to ff0r n;- fastenmg ce v n'g holestherein and-arranged alsoj to d the Work Ipiece tofastening-inserting arrangec to; be; dis-;- placed while themachine;isg-atlrestmndmeans operated by displac-em entfof 1t presented to the machine to 1formpfastening receiving holes therein and arranged 11 9 to. P e J fa tening nse t ng positiong a manually op erahle 1 controller, ar

- ranged to be; displaced while theimachine is at rest; aspringtending t'OQmovethe'aWl to ork penetrating posi ion {but normally F rcstrained against suchactionsandmeans ope: ated by displacement of; the controllerto .Init'the springto move-the awlftowork trating position. i

. p 1? pene- 91A fastening inserting maehine having, 1

in combination, an aWl means for causing the Y to penetrate awork-piece presented to the machine, then to mov e; transversely of its.

Workpenetrating IIlQVGIIlGIIt tO feed the WOIi{ piece to fastening inserting; position, 1 then to withdraw from thework'ipiece and finally to return to itsinitial p.ositi0n','\vhich position it occupies when the 'Work'p'enetratingposition: f i 10. A fastening: inserting machine having receiving holes therein and arranged also to feed-the ork piece "to fastening inserting position, a l 'rnanuallyt displaceahle controller arranged to be. displaced V While theniachnae pf power operated means operable when the ln awhe'n displaced tron its normal position withzthe machineiat v hand leve tonice the awl to orkpene't at ngpositlong machine' is standing at rest, and a hand lever-operable when-the-1nai chineis at rest to cause theatvl to move torts eaWltomove;

N 2 o 1 63 eon- I 8. A fastening :i nsertingimachine ha-vin g V arranged te penetrateia :WOIf-k piece;

store; he awl tonormal-{operation on resta v i, a v k I V, #90,. an awl-arranged'to penetrate a ork piece J presented to the machine to fornifastening ranged to be displaced while the machine is atrest, a spring tending to move the awl to position, a manually operable controller arwork penetrating position, a latch normally restraining such-action of the spring connecing the machine. V v r y 12.' A. fastening insert ng machine'having, in combination, an awl, means for causing the tions between the controller and the spring" arranged to cause displacement of thecontroller to release the latch thereby permitting the spring to move the awl to work penetrating-position, and means arranged to restore the awl' to normal operation on restartawl to penetrate a work piece presented to the machine and to be withdrawn therefrom and arranged to cause the-awlto come tor'est out of engagement with thework piece when the machine is stopped, a driver constructed and arranged to drive fastenings into the 'holes' formed by the awl in the work piece, "4 and means operable-whenthe machine'is at rest to cause-the awl to move to its work penetrating position.

13. A fastening ins an and constructed and arranged to make fastening receiving holes in awvork piece" presented thereto and arranged to come to piece, a driver arranged'to drive fastenings into the holes formed by the hole on the work piece, and a manually operable controller v position with the machine at rest to cause movement of the awl to its: work penetrating arranged whendisplaced from its normal position. 7 v J r '14. o A fastening inserting machine having an awl, means for operating the awl to form fastening receiving holes in a work piece presented thereto and arranged to cause-themachine to come torest with the awl withdrawn form the work piece, a: driver, means for op erating the driver to insert fastenings in the 1 r noles formed by the awl in the work piece, a

manually operable controller arranged when displaced from its normal position with the machine at rest to cause movement ofthe awl to 'it'sfwork penetrating position, and means' constructed and arranged to re store the and to normal position when the machine is'againstarted. a c

15. A fastening nserting machine having an awl arranged to penetrate "a work piece presented to the machine to forinfasteningreceiving holestherein and arranged also to feed the work' pieceto fastening inserting position, a driver, means for operating the dr ver to insert fastenings in the holes'formed Y the controller. 7 r

I i I work penetrating position. erting machine having by the awl'in' the work pieceyafmanually opinent of the controller to move the awl to its work penetrating position, and means for restoring the awl to normal operation on'reerablecontroller displaceable while the ma- 7 chine is atrest,-means operated by displacestarting the machine'after displacement of 16'; A fastening inserting machine having, in combination, two membersmounted end toend for rotation "abou'tia single axis and each provided-with'fla projecting lug, a plunger carried by one'of the members, a

spring tending to hold the plunger with its end in a socket "carriedbytheotheii'member thereby holding the two "lugs in engagement with each other, means tending to cause relative' rotation of the two members in' a directionto separatethe twoflugs but restrained against such action. by the plunger when its -endis inthe'socket, an'awl and an ,awl bar connectedtoone of the members',a earn, a'

cam lever roc'kedby rotation of the cam and "connected with the other member "thereby causing rotation of the cam to reciprocate the awl, and a manually operablecontroller by displacement of which the plunger may be I withdrawn from the socket when the machine is at rest therebypermittingrelative rotation of the two 'members and movingthe awljto 17 A- fasteningrinserting machine having, in combination, two sleeves mounted end to end for rotation about a single axisand each V v provided with a' projecting lug, a plunger "rest-with the awl' Withdrawn fronrtlie work carried by oneof the sleeves, a spring tending to hold the plunger with its end in a socket ro'cation'by rocking of. said sleeve, acain, a

cam lever rocked by'rotationjof the cam'and connected with the other sleeve thereby causing rotation of the cam'to reciprocate the awl, and a manually operable controller by displacementof which the plunger may be withdrawn from the socket when the machine is at rest, thereby causing relative rotation of the two, sleeves under the action of their spring andmoving. the awl towork penetratingposition, v 7

1 8; -A fasteninginserting machine having,

in combination, two sleeves mountedend to 7 end for rotation about a single axis and each provided with a projecting lug, a plunger carriedby one of thesleeves and formed with a cam surface, a spring tending to hold the plunger with its endiina' socket carried by the other sleeve thereby holding the two lugs in engagement witheach' other, a spring tending to cause relative rotation of the two sleeves 'in a direction to separate the two lugs but restrained against such action by the plunger when its end is in the socket, an aw] and-awl bar connected to the plunger-carryu ing sleeve and arranged rocking of said sleeve,

ranged by displacement of the hand lever to engage the cam surface of the plunger to" I.

withdraw the plunger from its socket, thereby disconnecting the two sleeves, and by fur- I ther displacement of the hand lever after the plunger has been withdrawn from its socket plunger-carrying sleeve positively to rock the thereby moving the awl into work penetrating position.

. In testimony whereof I name to this specification. WILLIAM THOMAS BUCKINGHAM ROBERTS.

for reciprocationby a cam, a cam lever I rocked by rotation of the cam and connected with the other sleevethereby causing rotation of the cam to reciprocate the awl, and a hand lever provided with a surface formed anda'rhave signed my 

